Nguyen Tung

8 Questions 17 Answers 0 Followers

Questions related from Nguyen Tung

How can I determine the crystallinity of highly amorphous material by DSC using 100% amorphous reference?

I have read some papers. The formula for calculating the crystallinity in DSC is based on the reference of 100% crystallinity. The fraction of crystallinity is a ratio of the melting enthalpy of...

20 March 2014 3,821 6 View

Does anyone know how to determine the Miller indices (hkl) of non-cubic structures such as body centered tetragonal (bct)?

The crystalline phase in my materials include bcc (Fe-Si), bct (Fe2B), and bct Fe3B. I can index the bcc (Fe-Si) in XRD or TEM, but I don't know how to index bct phase.

18 March 2014 5,260 4 View

What is the principle of creating a background curve? and How can we quantify the percentage of crystalline phase?

I use XRD to identify crystalline phases created in metallic glass film after heat treatment. In order to compare these crystalline phases, I quantify how much these phase is formed by calculating...

02 February 2014 8,092 1 View

Can anyone tell me how I can buy metallic glasses?

I am working on metallic glasses. I want to buy this material, but I do not know how to buy it. Do you know which companies or websites sell this material? I need to buy a metallic glass thin film...

15 August 2013 5,126 6 View

Is it possible to calculate the degree of crystalline phase after laser heating by using DSC ?

I am working on laser. I use laser to irradiate the amorphous material, then I would like to know how many percent of crystalline phase created in amorphous? Is it possible to calculate the degree...

12 August 2013 5,015 2 View

Can anyone help me calculate the volume fraction of crystalline phase by XRD?

I am a beginner in learning XRD analysis. Can we use the X'pert highscore software to determine the percentages of crystallinity based on the diffraction pattern? Which formula is used to...

07 August 2013 2,220 65 View

How can we estimate the heating and cooling rate in a femtosecond laser?

Does anyone know a formula to calculate the heating and cooling rates in a femtosecond laser? How can we measure the temperature during laser processing ?

07 August 2013 7,880 13 View

Can we measure the percentage of crystalline phase by TEM?

I am working on metallic glasses. Metallic glasses are first heated, then characterized by TEM. I want to know how many percentage of crystallinity is created after heating. One more question....

07 August 2013 8,968 5 View